Architecture Billings Remain Sluggish Through June

WASHINGTON – July 22, 2026 – The AIA/Deltek Architecture Billings Index® (ABI) score was 47.3 for June. Although the score improved by nearly three points from May, it remained in negative territory, indicating most firms reported a decline in billings.

Inquiries increased in June after a slight decline in May and the value of newly signed design contracts was just below 50, meaning it was essentially flat, with nearly equal shares of firms reporting decreases and increases. Backlogs also declined slightly in the second quarter, falling to an average of 6.3 months from 6.6 months in the first quarter. The sharpest decline was among small firms with annual billings of less than $250,000, where backlogs fell from an average of 4.9 months to 3.1 months.

“Architecture firms remain mired in one of the longest running downturns in the 30-plus year history of the ABI, which now stretches to 41 months without a majority of firms reporting billings growth,” said AIA Chief Economist, Richard Branch. “The uncertainty over the conflict in Iran along with high interest rates and significant labor shortages will continue to weigh on construction – and architect billings over the next several months.”

Key ABI highlights for June include:
•    Regional averages: South (49.5); West (45.6); Midwest (45.1); Northeast (44.9); 
•    Sector index breakdown: institutional (47.4); commercial/industrial (46.7); multifamily residential (45.6); mixed practice (firms that do not have at least half of their billings in any one other category) (42.7)
•    Project inquiries index: 56.1
•    Design contracts index: 49.8

The regional and sector categories are calculated as three-month moving averages and may not always average out to the national score.

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About AIA
Founded in 1857, AIA consistently works to create more valuable, healthy, secure, and sustainable buildings, neighborhoods, and communities. Through more than 200 international, state, and local chapters, AIA advocates for public policies that promote economic vitality and public well-being.

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About Deltek
Better software means better projects. Deltek is the leading global provider of enterprise software and information solutions for project-based businesses and the home of AIA MasterSpec®. More than 30,000 organizations, including 12,000 Architecture & Engineering firms, rely on Deltek for superior levels of project intelligence, management, and collaboration. Our industry-focused expertise powers project success for A&E firms of all sizes by helping them achieve performance that maximizes productivity and revenue. Learn more at Deltek.